Alert archive / Michigan / Special Marine Warnings in 2020

Special Marine Warning 21, NWS Grand Rapids, MI

July 9, 2020

NWS Grand Rapids, MI issued this special marine warning at Jul 9, 2020, 11:01 PM EDT. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 9, 2020, 11:01 PM EDT (03:01 UTC)
Expired: Jul 10, 2020, 12:00 AM EDT
In force: 59 min
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Hail: 0.0 in
Wind: 34.0 mph

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Rapids, MI wrote its last area forecast discussion before this special marine warning went out at Jul 9, 10:25 PM EDT, 36 minutes earlier.

Area forecast discussion, Jul 9, 10:25 PM EDT, 36 minutes before

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Hazardous weather outlook, Jul 9, 4:00 AM EDT, 19 hours 1 minute before

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
400 AM EDT Thu Jul 9 2020

MIZ037>040-043>046-050>052-056>059-064>067-071>074-100800-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
400 AM EDT Thu Jul 9 2020

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Heat indices of 95 to 100 are expected again this afternoon.
Scattered thunderstorms could produce torrential downpours and
brief gusty winds, along with dangerous lightning strikes.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Scattered thunderstorms on Friday could produce heavy rainfall and
localized flooding. Isolated storms are also possible Saturday
through Monday, mainly inland from Lake Michigan in the afternoons.

Although less humid weather will move in for the weekend, heat and
humidity will return again by the middle of next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ844>849-100800-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
400 AM EDT Thu Jul 9 2020

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Thunderstorms with gusty winds could impact lake Michigan after 8
PM this evening.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms are possible over Lake Michigan on Friday. Stronger
northerly winds behind a cold front are possible Friday night
and/or Saturday, which could lead to a period of hazardous
conditions for small craft and swimmers.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

In the hours before

Local storm report, Jul 9, 6:35 PM EDT, 4 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
635 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     HAIL             2 N CUTLERVILLE         42.87N 85.66W
07/09/2020  M0.75 INCH       KENT               MI   PUBLIC

&&

Local storm report, Jul 9, 6:39 PM EDT, 4 hours 22 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
639 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0533 PM     HEAVY RAIN       2 NW SYLVESTER          43.56N 85.28W
07/09/2020  M1.36 INCH       MECOSTA            MI   PUBLIC

0531 PM     HEAVY RAIN       1 SSE RODNEY            43.66N 85.32W
07/09/2020  E1.39 INCH       MECOSTA            MI   PUBLIC

0625 PM     FLOOD            2 ESE WYOMING           42.89N 85.66W
07/09/2020                   KENT               MI   TRAINED SPOTTER

            PONDING OF WATER ALONG DIVISION WITH 8 TO 9
            INCHES AT DIVISION AND 43RD.

0600 PM     HAIL             1 NW CUTLERVILLE        42.85N 85.68W
07/09/2020  M0.50 INCH       KENT               MI   PUBLIC

0600 PM     HAIL             2 N CUTLERVILLE         42.87N 85.66W
07/09/2020  M0.75 INCH       KENT               MI   PUBLIC

0529 PM     HEAVY RAIN       3 ENE KENTWOOD          42.89N 85.55W
07/09/2020  E0.85 INCH       KENT               MI   NWS EMPLOYEE

0502 PM     HEAVY RAIN       3 SE ROCKFORD           43.09N 85.51W
07/09/2020  E3.11 INCH       KENT               MI   PUBLIC

0500 PM     HEAVY RAIN       3 WSW CANNONSBURG       43.04N 85.52W
07/09/2020  M1.57 INCH       KENT               MI   NWS EMPLOYEE

0450 PM     HEAVY RAIN       2 SSW COMSTOCK PARK     43.02N 85.70W
07/09/2020  E1.48 INCH       KENT               MI   TRAINED SPOTTER

0447 PM     HEAVY RAIN       4 E ROCKFORD            43.14N 85.48W
07/09/2020  M1.35 INCH       KENT               MI   PUBLIC

0445 PM     HEAVY RAIN       2 ENE BELMONT           43.09N 85.57W
07/09/2020  E2.87 INCH       KENT               MI   PUBLIC

0412 PM     TSTM WND DMG     2 NNW GRAND RAPIDS      42.99N 85.67W
07/09/2020                   KENT               MI   PUBLIC

            TREE DOWN AT COLFAX AND TAYLOR.

&&

Local storm report, Jul 9, 8:07 PM EDT, 2 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
807 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 PM     HEAVY RAIN       3 ENE KENTWOOD          42.90N 85.55W
07/09/2020  M1.25 INCH       KENT               MI   CO-OP OBSERVER

            3 HOUR TOTAL. CO-OP STATION GRRM4. NWS GRAND
            RAPIDS.

&&

CAS

Local storm report, Jul 9, 8:30 PM EDT, 2 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
830 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0357 PM     TSTM WND GST     2 SSW COMSTOCK PARK     43.01N 85.69W
07/09/2020  M38 MPH          KENT               MI   BROADCAST MEDIA

0700 PM     HEAVY RAIN       2 SSW COMSTOCK PARK     43.01N 85.69W
07/09/2020  E1.28 INCH       KENT               MI   BROADCAST MEDIA

            4 HOUR TOTAL. WZZM.

&&

CAS

Local storm report, Jul 9, 8:51 PM EDT, 2 hours 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
851 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0550 PM     TSTM WND DMG     BYRON CENTER            42.81N 85.72W
07/09/2020                   KENT               MI   PUBLIC

            MICROBURST. SPRUCE TREE SNAPPED. VINYL FENCE
            PANELS BLOWN OUT.

&&

CAS

Local storm report, Jul 9, 9:20 PM EDT, 1 hour 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
920 PM EDT THU JUL 9 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     HEAVY RAIN       3 WSW CANNONSBURG       43.04N 85.53W
07/09/2020  M1.60 INCH       KENT               MI   NWS EMPLOYEE

0800 PM     HEAVY RAIN       2 W ADA                 42.95N 85.53W
07/09/2020  M1.78 INCH       KENT               MI   COCORAHS

&&

CAS

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 9, 9:47 PM EDT	Special Marine Warning	GRR		88 min
Jul 9, 10:00 PM EDT	Small Craft Advisory	GRR		26 hr
Jul 9, 10:03 PM EDT	Beach Hazards Statement	GRR	Allegan, Mason, Muskegon, Oceana, Ottawa, Van Buren	25 hr
Jul 10, 2:10 AM EDT	Special Weather Statement	GRR	Allegan, Barry, Clare, Ionia, Isabella, Kalamazoo and 7 more	80 min
Jul 10, 2:57 AM EDT	Special Marine Warning	GRR		52 min
Jul 10, 4:17 AM EDT	Special Weather Statement	GRR	Allegan, Barry, Clare, Ionia, Isabella, Kalamazoo and 7 more	2 hr
Jul 10, 1:51 PM EDT	Special Weather Statement	GRR	Calhoun, Clinton, Eaton, Ingham, Jackson	4 hr

Nearby

Special Marine Warnings in Michigan, 2020 Every special marine warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.